Inventor · disambiguated record

Hiroki Hagihara

Also filed as: HAGIHARA HIROKI

2 granted patents·2 citations·filing 2018–2021

35Inventor score

Technology areasC10N

Files withSANYO CHEMICAL IND LTD2

Top patents by PatentIndex Score

2 records

0180US11008528B2Viscosity index improver and lubricating oil compositionSANYO CHEMICAL IND LTD·Filed 2018·Granted May 18, 2021·2 cites·12 claims
0260US12168756B2Viscosity index improver composition and lubricating oil compositionSANYO CHEMICAL IND LTD·Filed 2021·Granted Dec 17, 2024·0 cites·6 claims

Join the waitlist — get patent alerts

Get an alert when Hiroki Hagihara files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →